Question: Tell me which diatomic nonmetal oxidises fastest?
Paraphrase: What is the quickest diatomic nonmetal oxidizing agent?
SPARQL (Wikidata): select ?ent where { ?ent wdt:P31 wd:Q19753344 . ?ent wdt:P1121 ?obj . ?ent wdt:P31 wd:Q19753344 } ORDER BY DESC(?obj)LIMIT 5